Add a possibility to pass a fallback image url to the options

In my project, I need to get images via ipx, and if there is no such image, I would love to get some placeholder that I would have specified in options. So, is there any way to add such a thing, so the initialization would look like

import { createIPX, createIPXMiddleware } from "ipx";

const ipx = createIPX({
  /* other options */
  fallbackUrl: '/path/to/the/image.png'
});
const app = express();
app.use("/image", createIPXMiddleware(ipx));

Or is there already a way I could handle such 404 errors myself?

Start by tracing the createIPX options and createIPXMiddleware entry points to see how missing images become 404 responses and whether middleware errors are exposed for handling. Done means a configured fallbackUrl produces the placeholder for missing images while existing image requests retain their current behavior.